A CNC lathe is a machine tool designed to remove material from a
rotating work piece, using a cutting tool. Some lathes can form
hollow parts by a process called metal spinning. These parts have
circular cross-sections. Metal and other materials can be turned on
a lathe, including wood and plastics. CNC controlled lathes use a
computer to control the process of making each part with repeated
accuracy and precision.

Application Challenges

· Precise speed regulation and torque over wide speed range

· Interlock drive with operation of CNC.

· Quick acceleration even under high torque conditions

Power range of V8 VFD

Voltage: 3 phase 380VAC (304VAC – 460VAC)

Power: 0.4kw/0.5HP – 400kw/535HP

Specification of V8 VFD

Item

Specification

Input frequency

50/60Hz

Output frequency

0-600Hz

Overload current

150% rated current 1min., 180% 2 sec.

Control mode

sensor-less vector control(SVC), V/F control

Starting torque

150% 1Hz (SVC 150% 0.5Hz)

Control precision

±0.5%

Given Frequency Resolution

Digital given: 0.01Hz, analog given: 0.05Hz

Running Mode

Keyboard, control terminal, RS485

Output Voltage self-adjustment

When AVR function is enabled, the input voltage changes, while the
output voltage almost remains unchanged

A variable-frequency drive (VFD) is a system for controlling the
rotational speed of an alternating current (AC) electric motor by
controlling the frequency of the electrical power supplied to the
motor. A variable frequency drive is a specific type of
adjustable-speed drive. Variable-frequency drives are also known as
adjustable-frequency drives (AFD), variable-speed drives (VSD), AC
drives, microdrives or inverter drives. Since the voltage is varied
along with frequency, these are sometimes also called VVVF
(variable voltage variable frequency) drives.